▎ 摘　　要

NOVELTY - Anti-explosive composite material modified by hydroxy and amino groups comprises semi-prepolymer first component and second component. The semi-prepolymer first component comprises 40-60 wt.% polyether glycol or polyester glycol, 8-10 wt.% polyisocyanate and 30-35 wt.% composite material of hydroxy modified nano-carbon and polyaniline in secondary doped state. The second component comprises 50-70 wt.% amino-terminated polyether or carboxy-terminated polyether, 10-30 wt.% diamine chain extender, 0.5-1 wt.% molecular sieve powder slurry, 0.5-1 wt.% color paste and 0.1-0.5 wt.% composite material of amino modified nano carbon, intrinsic polyaniline and secondary doped polyaniline. The polyether diol or polyester diol and polyisocyanate are present in the semi-prepolymer first component in the form of isocyanate-terminated semi-prepolymer. USE - Used as anti-explosive composite material modified by hydroxy and amino groups. ADVANTAGE - The composite material: avoids the defect of poor low-temperature flexibility of the material by increasing the content of the hard segment in the resin system to reinforce the material; improves resistance to gas explosion impact of petrochemical enterprise buildings; and reduces the explosion impact damage of petrochemical enterprise buildings. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the anti-explosive composite material, comprising (i) mixing nano-carbon raw material with the mixed acid in a mass percentage of 0.1:100, stirring for 6-8 hours at 60 degrees C after being uniformly dispersed by ultrasonic, then washing using deionized water, when the water is washed to pH 1, adding aniline and ammonium persulfate in a ratio of 0.8:1 by molar mass percentage, stirring for 2 hours at room temperature, allowing to stand for reaction for 12 hours, then washing using deionized water for many times and filtering with suction until the filtrate is neutral, drying the product at 80 degrees C to obtain composite material of the target product hydroxy-modified nano-carbon and primary doped polyaniline, (ii) filling dry flask with nitrogen, adding 0.1 pts. wt. composite material of hydroxy modified nano-carbon and primary doped polyaniline into the flask, vacuuming and filling with nitrogen again, adding 80-100 pts. wt. N,N-dimethylformamide and ultrasonically dispersing for 2 hours, then adding 1 pts. wt. acrylic acid and 1 pts. wt. azobisisobutyronitrile, stirring for 5 hours under constant temperature water bath at 60 degrees C, then washing using deionized water for many times and filtering until it is neutral, then washing using acetone for many times and filtering under vacuum, placing it in an oven at 80 degrees C and baking it to constant weight to obtain composite material of the target product carboxy modified nano-carbon and secondary doped polyaniline, (iii) filling dry flask with nitrogen, adding 0.1 pts. wt. composite material of carboxy modified nano-carbon and secondary doped polyaniline into the flask, vacuuming and filling with nitrogen again, adding 80-100 pts. wt. N,N-dimethylformamide and ultrasonically dispersing for 0.5 hours, then adding 4 pts. wt. amino-terminated polyether, stirring for 12 hours under a constant temperature water bath at 80 degrees C, washing using deionized water for many times and filtering until it was neutral, washing using acetone for many times and filtering under vacuum, placing it in an oven at 80 degrees C and baking to constant weight to obtain composite material of the target product amino-modified nano-carbon, intrinsic polyaniline and secondary doped polyaniline, (iv) stirring and heating polyether diol or polyester diol to 100-130 degrees C in inert environment, dehydrating under vacuum -0.1 MPa for 2-3 hours, then releasing the vacuum, adding polyisocyanate to the temperature below 60 degrees C and reacting at 80-90 degrees C for 2-4 hours, after the reaction, measuring the NCO value and discharging the material, and obtaining isocyanate-terminated semi-prepolymer by filtration, (v) mixing prepared isocyanate-terminated semi-prepolymer and the composite material of functionalized hydroxy-modified nano-carbon and secondary doped polyaniline with each other under an inert environment, then using ultrasonic dispersion treatment at 50-60 degrees C for 24 hours, after the reaction, measuring the NCO value and discharging material, and obtaining semi-prepolymer first component by filtration, (vi) dispersing, stirring and filtering amino-terminated polyether or hydroxy-terminated polyether, diamine chain extender, molecular sieve powder slurry and color paste in a mass ratio of 50-70%:10-30%:0.5-1%:0.5-1% in inert environment to obtain the second component premix, then mixing second component premix and functionalized amino-modified nano-carbon in a mass ratio of 210:0.2-1 with intrinsic state polyaniline and composite materials of the secondary doped polyaniline, and ultrasonically dispersing and filtering to obtain the second component, and (vii) before spraying, mixing semi-prepolymer first component and second component with each other in a volume ratio of 1:1 to obtain hydroxy and amino modified anti-explosive composite material.